This one seems to me like a big deal.  When you move what's being built in a city from the front of the queue to later in the queue, i.e. you are building for example a well, and you move a pioneer in front of it from the back of the queue, the label that says what the city is building doesn't update until you hit the end turn button.

  This is not a big deal for those of us who have been testing the game, but I think for a new user it will be very confusing, and really feel broken.  They will move something to the front of the queue, and not see a change, and think that they still need to do something else to change what is being built.